GIMP :: How To Pre-apply Filters

I am using gimp 2 to make a cartoon/rotoscope video. I used a separate program to remove each individual frame (2400+ frames) from a video as still images that can then be edited in Gimp. What I do is open the image, add two filters, then I save the image. The problem is repeating this over and over for each frame is getting to be very cumbersome and annoying. Is there a way to have the filter apply themselves automatically each time I open a new image? It would make things a lot easier and it would make the process go by much faster. It's annoying having to choose the filters from the drop down list every single time, especially when i keep applying the same 2 filters with the same exact settings every time. The same goes for the size of the image. Is it possible to just set gimp to a certain size and have it open at that same size every single time? It keeps asking me what size I want every time I open a new file. Gimp does remember the last size I typed in, but it still asks me to confirm it every single time i click new.